Ngl the real art is structural engineering with food. If your bread was soft and you had wet stuff like tomatoes in the middle, that's a guaranteed collapse. Next time try toasting the outer pieces and putting the drippy stuff right against the dry toast.
So are we supposed to draft construction plans before making a sandwich now? I guess @wesley181 was onto something with the toasting tip, but this is next level. My tomato always makes everything collapse, so maybe I need a licensed engineer in the kitchen. Can't believe I need a degree just to keep my lunch from falling apart.